DIY Humidifier Accessories
Everything you need to build and automate your own ultrasonic fog humidifier. These accessories turn any House of Hydro mist maker into a complete, hands-off humidification system for grow tents, greenhouses, mushroom fruiting rooms, reptile enclosures, and whole-home setups.
Add a waterproof fan kit to push fog where you need it, a humidistat controller to hold humidity automatically within a few percent of target, and the mist output controller to dial fog volume up or down. The auto-fill float valve keeps your reservoir topped off for unattended runs, the UV reservoir sterilizer keeps water clean between refills, and the splash guard and duct adapter help you fine-tune placement and airflow.
New to building your own? Start with our DIY humidifier build guide, or pair these with a mist maker kit to get fogging in about 30 minutes.
Not every project needs this much. What you see below is a complete, fully automated humidifier — auto-fill, humidistat control, UV, ducting, the works. Plenty of builds are far simpler. For a lot of projects a mist maker and a waterproof fan in a sealed container, with a hole for the fog to push out, is the whole build. Start with what your project actually needs and add the automation later if you want it.
